CIS experts-The winner

[JShadzi at aol.com]

Very good Nate, also to Rob B Dad!  I pulled out the FP relay, pulled off the cover, and one of the contacts for the dual circuit (the ISV, etc) fell out!  So, I am going to throw in a spare I have tonight and see what happens.

The problem is that when cold, or not under throttle for that matter, the O2 is not heated and the ECU overcompensates thinking things are going lean, which results in a totally rich mixture!  This should fix it, thanks guys for the brain storming.  And Huw, your solution was way too easy!   =)
Javad

In a message dated Mon, 7 May 2001  4:18:37 PM Eastern Daylight Time, Nate Stuart <nathan.stuart at maine.edu> writes:

<< Fried fuel pump relay?? They all get the power off of that...correct? Sounds 
like you've got either a pulled wire off the bottom of the fuse box, or a 
funked relay (although I'm pretty sure that the pump would be out as well if 
this were the case).

My .00002 cents
-Nate
'89 90q

Quoting JShadzi at aol.com:

> Ok, so now I have no power to the ISV, O2 preheater, or the cold start
> valve, and no fuses blown...any ideas??
> Javad
> 
 >>